Hi there, everything I render out of Vegas appears fine but once uploaded to Youtube it's about 25% darker than it should be. I've searched on Google and it seems to be a fairly common thing but no real concrete answers out there. Wondering if anyone here has experience with this and if rendering with any particular settings or format fixes the issue?
Cheers
I have occasionally had the impression that youtube does auto-light and auto-contrast and a bit of noisereduction as default processing, but yes, always render to video levels except if you render with the buggy codec that takes everything to videolevels an extra time. Oh, and video levels mean nothing darker than 10 percent and nothing brighter than 90 percent, simply explained. 100 percent white leads to overload in composite video as I understand this.
Actually the figures are 6% (16*100/255) and 92% (235*100/255), but if you check "Studio RGB (16 to 235)" in your video scopes settings then these become 0 and 100% on the Waveform.
digilyd,
YouTube doesn't change levels, players do. This can get very perplexing when "dynamic contrast" or other tantalizing switches are left turned on inside your graphics card, hardware player, or teevee. None of these entities, including youtube, do a full scan pass which would be needed to find native min/max levels for any kind of automatic leveling to take place.
For an entertaining and revealing look at an old conundrum, see this article:
https://www.vegascreativesoftware.info/us/forum/pc-to-tv-levels-a-comedy-of-errors--107325/
Yes, there is usually a lot of stuff that players, tv and indeed graphics cards think they know best, thank you!
It's a lot worse than that. In all their insistence to enforce whats best for us, the probability of introducing a significant unintentional leveling error has now risen to a magnitude of 2^5!
Ponder that for a moment, then realize that it all started with Apple reinventing color space without asking anyone ...
Imagine that.